JP2001141949A - Optical waveguide device - Google Patents

Abstract

(57) Abstract: In an optical waveguide device, the degree of freedom of device arrangement is improved by using a two-dimensional optical waveguide and a unique optical input / output terminal element. One end of an optical input / output terminal element (312, 322) is brought into close proximity to, in contact with, or inserted into a two-dimensional optical waveguide (1) that has spread two-dimensionally, and optically connected to the other end of the optical input / output terminal element (312, 322). The light from the optical output part of the optical element or the light input to the optical input part of the optical element is coupled to the two-dimensional optical waveguide 1.
Waveguide.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical waveguide device for guiding light handled by an optical element using a two-dimensionally spread two-dimensional optical waveguide, and typically has an optical terminal and an electric terminal. The present invention relates to an optical waveguide device configured as an optoelectronic device for connecting elements with a two-dimensional optical waveguide using electrical wiring.

[0002]

2. Description of the Related Art Conventionally, as means used for connection between optical elements, for example, there is an optical waveguide plate described in Japanese Patent Application Laid-Open No. 7-98463. FIG. 13 shows this configuration as viewed from the side. In the figure, reference numeral 807 denotes an optical waveguide plate (three-layer structure, which is composed of two transparent layers 808 and 809 and one reflection layer 810); 802, a light emitting element;
803 is a light receiving element, 801 is a signal processing circuit, 811, 8
Reference numeral 12 denotes a lens formed on the optical waveguide plate 807, and reference numeral 805 denotes a light beam.

The operation of the above conventional example will be briefly described. Light output from the light emitting element 802 is condensed by the lens 811 and changes its direction, reaches the reflection layer 810 of the optical waveguide plate 807, and is reflected. The light reflected by the reflective layer 810 is collected by the lens 812 to the light receiving element 803. Thus, data can be transmitted between the light emitting element 802 and the light receiving element 803.

[0004]

However, in the above-described conventional example, the lenses 811 and 811 formed on the surface of the optical waveguide plate are not provided.
Since a path connecting two points is formed using the reflective layer 12 and the reflective layer 810, 1) a space is required between an optical element (light emitting element and light receiving element) and an optical waveguide plate; Must be pre-formed on the board,
There are problems such as lack of freedom in arrangement, and 3) a route between elements is set in advance.

SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide an optical waveguide device such as an optoelectronic device and an optical waveguide method in which the degree of freedom in device arrangement is improved by using a two-dimensional optical waveguide and a unique optical input / output terminal element. Is to provide.

[0006]

The optical waveguide device of the present invention, which achieves the above object, has one end of an optical input / output terminal element approaching, contacting or inserting into a two-dimensionally expanded two-dimensional optical waveguide. The two-dimensional optical waveguide guides light from the optical output part of the optical element optically coupled to the other end of the optical input / output terminal element or light input to the optical input part of the optical element. It is characterized by having been constituted like this. With this basic configuration, the degree of freedom in arranging the optical input / output terminal element and the optical element is extremely increased, and, for example, the degree of freedom in arranging elements such as an integrated circuit arranged on a substrate can be improved.

[0007] Based on the above basic configuration, the following forms are possible. An element including an optical element for outputting light, an electronic circuit for driving the optical element, an optical input / output terminal element optically coupled to the optical element, and an optical element on the two-dimensional optical waveguide. An electronic circuit including an optical element to be connected, an electronic circuit including a receiving circuit of the optical element, and an element including an optical input / output terminal element optically coupled to the optical element are provided, and light is transmitted between the optical elements via a two-dimensional optical waveguide. It can send and receive signals.

[0008] Each of the elements has an electric terminal connected by electric wiring, and also exchanges an electric signal between the elements, so that the element can be configured as an optoelectronic device. With this configuration,
Optical signals and electric signals are used for signal transmission between elements according to the application. Rather than realizing data transfer between elements using only an electric signal or only an optical signal, each can be used for appropriate data transfer, and the degree of freedom of the circuit configuration can be improved. In this manner, by using the transmission medium for the electric signal and the transmission medium for the optical signal, the time difference of the data arrival between the elements can be reduced, and the signal speed at which the data can be transferred can be further increased.
For this reason, the restriction is removed from the state where the element arrangement is restricted only by electricity, and the degree of freedom of the element arrangement can be further improved.

Each of the elements has another optical element for outputting light and another optical element for inputting light, and the other optical elements can be connected to each other by light propagating in the air. By adopting a configuration in which an aerial transmission path is formed between elements, there are three options for coupling between adjacent elements: electrical wiring, two-dimensional optical waveguide, and aerial wiring. Goes up further.

On the two-dimensional optical waveguide, there are provided two or more sets of elements including an optical element, an electronic circuit, and the optical input / output terminal element for transmitting and receiving light. Through which optical signals of different wavelengths can be transmitted and received. As described above, if the wavelength multiplexed signal can be used in the two-dimensional optical waveguide, a plurality of paths can be formed in one common two-dimensional optical waveguide. In this case, if the light emitting elements of one set of elements and the light receiving elements of the other set are tunable, these sets of elements can be connected by changing the wavelength. Further, two sets of elements can be simultaneously connected with a plurality of different wavelengths.

The elements can be provided on the two-dimensional optical waveguide by providing respective elements on a substrate for an electronic circuit / optical element.

[0012] Further, the element may be a substrate (for example, a substrate such as a substrate for mounting electronic components provided on a two-dimensional optical waveguide).
(Printed circuit board). In this case, the substrate and the two-dimensional optical waveguide are stacked (separately formed and stacked), or the substrate and the two-dimensional optical waveguide are stacked (one is coated on the other and the other is coated, etc.). Is done). By arranging the two transmission media close to each other as described above, the configuration can be more easily reduced in size. In addition, by using the integrated medium, it can be used without difference from a board on which an electronic device is mounted, such as a conventional printed board.

The element can be provided directly on the two-dimensional optical waveguide or via the electronic circuit / optical element substrate.

In the case where the element is provided on the two-dimensional optical waveguide without interposing the substrate, electric wiring is formed on the surface of the two-dimensional optical waveguide. With this configuration, the substrate for electric wiring can be omitted.

An optical input / output terminal element having one end in a needle shape and one end inserted into the two-dimensional optical waveguide can be used. According to this configuration, the light output from the optical element is efficiently guided into the two-dimensional optical waveguide, and the optical element and the two-dimensional optical waveguide can be easily and efficiently coupled. This optical input / output terminal element is composed of an optical fiber or the like whose end is sharpened.

By pressing the end face of the optical waveguide against the two-dimensional optical waveguide by using the optical input / output terminal element formed of the optical waveguide, the scattering of the two-dimensional waveguide portion corresponding to the optical waveguide crimping portion causes the optical waveguide to scatter. And the light propagating in the two-dimensional optical waveguide can be coupled. In this case, the pressing force of the end face of the optical waveguide against the two-dimensional optical waveguide is adjusted and fixed in that state, and the degree of scattering of the two-dimensional waveguide portion corresponding to the optical waveguide crimping portion can be appropriately set. This also makes it possible to easily and efficiently couple the optical element and the two-dimensional optical waveguide.

An uneven surface or a rough surface is formed on the surface of the two-dimensional optical waveguide, and the end surface of the optical input / output terminal element is brought close to or in contact with the surface to scatter the uneven surface or the rough surface. An optical signal traveling in the optical input / output terminal element and light propagating in the two-dimensional optical waveguide can be coupled.

Further, a scatterer is mixed in the two-dimensional optical waveguide, and the end face of the optical input / output terminal element is brought close to or brought into contact with the mixed portion, so that light traveling through the optical input / output terminal element is mixed. The signal and light propagating in the two-dimensional optical waveguide can be combined.

By using an optical input / output terminal element composed of a prism, it is possible to make one end face of the prism contact the surface of the two-dimensional optical waveguide. Thus, by providing the prism coupler between the waveguide from the optical element and the two-dimensional optical waveguide, the optical element and the two-dimensional optical waveguide can be easily and efficiently coupled.

The light input / output terminal element can be formed so that light can be emitted in a direction covering all 360 degrees in the two-dimensional optical waveguide. This example is described in the sixth embodiment. In the case of an optical fiber with a sharpened end,
This end may be sharpened into a conical shape. An optical input / output terminal element can be formed so as to receive light propagating from an arbitrary direction of the two-dimensional optical waveguide. Also in this case, in the case of an optical fiber having a sharpened end, this end may be sharpened to a conical shape. In this manner, by setting the directivity of the optical input / output terminal element to all directions, data communication by an optical signal between the elements can be performed at 1: n (plurality). Further, a configuration can be realized in which an optical signal output from an element can be received by any other element, or a configuration in which a certain element can receive an optical signal propagating from any direction can be realized.

An optical input / output terminal element may be formed so as to emit light to a predetermined angle range in the two-dimensional optical waveguide. Further, the light input / output terminal element can be formed so as to receive light propagating from a certain angle range in the two-dimensional optical waveguide. As an example of this, in the case of an optical fiber having a sharpened end, light input / output may be performed by cutting the end obliquely and forming a slope, or by forming the slope with a concave or convex surface. A terminal element can be configured. This allows
A configuration in which an element transmits and receives an optical signal to and from another element in a specific direction can be realized. Thus, the optical input / output terminal element of the element is 2
The angle of the light radiating into the two-dimensional optical waveguide is limited to a constant,
With a configuration in which the direction of propagating light that can be captured by the optical input / output terminal element is at a fixed angle, one light can be transmitted between a plurality of sets of elements.
Different parts of the two two-dimensional optical waveguides can be used,
A plurality of independent paths can be formed in one two-dimensional optical waveguide.

The two-dimensional optical waveguide may have a configuration including a core sandwiched between claddings.

Further, the optical waveguide method according to the present invention, which achieves the above object, provides an optical input / output terminal by bringing one end of an optical input / output terminal element close to, in contact with or inserting into a two-dimensionally expanded two-dimensional optical waveguide. Light from an optical output part of an optical element optically coupled to the other end of the element or light input to an optical input part of the optical element is guided by a two-dimensional optical waveguide. Thereby, the degree of freedom of the installation position of the optical input / output terminal element on the two-dimensional optical waveguide becomes extremely large, and the degree of freedom of element arrangement can be improved.

[0024]

Embodiments of the present invention will be described below with reference to the drawings.

(First Embodiment) FIG. 1 is a perspective view best showing the features of the configuration of the first embodiment of the present invention. In the figure, reference numeral 1 denotes a two-dimensionally spread (rectangular in the illustrated example) two-dimensional optical waveguide (optical mat), 2 denotes a board such as a printed board used for mounting an electronic device or the like, 31 , 32 are elements (optoelectronic elements). Furthermore, 3
Reference numerals 11 and 321 denote electric terminals of the elements 31 and 32, which are connected via electric wiring 4 on the substrate 2. 312, 322
Denotes an optical terminal, and an optical input to the elements 31 and 32 or an element 3
Terminals for outputting light from the optical waveguides 1 and 32 pierce the two-dimensional optical waveguide 1.

In the case of this embodiment, the optical terminals 312, 32
Reference numeral 2 denotes a two-dimensional optical waveguide 1 passing through the substrates of the elements 31 and 32 (the electronic circuit / optical element substrate 53 shown in FIG. 2) and the substrate 2. Further, the substrate 2 and the two-dimensional optical waveguide 1
Are configured to be closely stacked.

The two-dimensional optical waveguide 1 used here is the one shown in FIG.
As shown in (e), it has a three-layer structure. That is, the two-dimensional optical waveguide 1 is configured by forming the clad 12 so as to sandwich the core 11. The thickness of the core 11 is, for example, 1 mm (this thickness is necessary because the optical terminals 312 and 322 are pierced), and the thickness of the clad 12 is, for example, 50 μm.

FIG. 2 shows a configuration example of the element 31. Here, the element 31 will be described as a transmitting element. The element 31 is
An electronic circuit 50 equivalent to a conventional IC or LSI, an optical element 51 capable of emitting light (semiconductor laser, LED, etc.), an optical element 5
An optical terminal (optical fiber) 52 for connecting the 1 to the two-dimensional optical waveguide 1 and an electronic circuit / optical element substrate 53 supporting these elements (FIG. 2A).
(B)). As the optical terminal 52, for example, one having a configuration in which both end surfaces of an optical fiber are cut obliquely is used. Diagonal cut surface 5
The light output from the optical element 51 is guided into the fiber 52 by using 2a, and propagates through the optical fiber 52. The propagated light is reflected by the obliquely processed slope 52b at the opposite end of the optical fiber 52 (which is stuck in the two-dimensional optical waveguide 1), and is emitted into the two-dimensional optical waveguide 1 ( FIG. 2C shows an enlarged view of the vicinity of the optical element 51 and the optical fiber 52, and FIG. 2D shows that the optical fiber 52 penetrates the electronic circuit / optical element substrate 53 and the substrate 2 and the two-dimensional optical waveguide 1 Is reached.) It is preferable to provide a reflection film on the slope of the optical fiber in order to increase the reflectance (the same applies to the following description).

FIG. 3 shows a configuration example of another element 32. Here, the element 32 will be described as a receiving element. When receiving, the optical fiber 62 pierced into the two-dimensional optical waveguide 1
The light in the two-dimensional optical waveguide 1 is reflected by the slope 62 b at the tip of the optical fiber 62, and the reflected light propagates through the optical fiber 62. The light that has propagated in the optical fiber 62 reaches a slope 62 a at the opposite end of the optical fiber 62 and is reflected there. In this manner, light is irradiated to the photodetector 61 (such as a photodiode) located opposite to the opposite end face of the optical fiber, received by the photodetector 61, and converted into an electric signal (FIG. 3A). ~
(D)). Reference numerals 60 and 63 correspond to the electronic circuit 50 and the electronic circuit / optical element substrate 53 shown in FIG.

Transmission and reception of data using electric signals can be performed using electric wiring as in the conventional case. FIG. 1 shows, as an example, the electric terminals 311 of the elements 31 and 32,
312 is connected by an electric wiring 4, and data is transmitted and received between the elements 31 and 32 using the wiring 4.

In addition, wiring for supplying power to each of the elements 31 and 32, and other ICs and L
Wiring for electrically transmitting and receiving data to and from the SI is formed on the substrate 2.

With this configuration, an electric signal can be used in addition to an optical signal to transmit and receive data between the elements. The advantage of using an optical signal is that the propagation delay time is much shorter than when an electric signal is used. Since the propagation delay time is short, the arrangement of each element can be freely selected. The configuration using the two-dimensional optical waveguide and the optical input / output terminal element of the present invention enables this free arrangement.

(Second Embodiment) FIG. 4 shows a second embodiment of the present invention. The second embodiment shown in the figure has basically the same configuration as the first embodiment. The difference is that the element 31,
32 are capable of transmitting and receiving optical signals. In order to do this, light emitting elements are respectively provided for the optical elements 31 and 32,
A light receiving element is incorporated, and these two devices are optically coupled to the light input / output terminals 312 and 322.

FIG. 5 shows the structure of the elements 31 and 32. 7
Numeral 0 denotes an electronic circuit, 72 denotes an optical input / output terminal, 711 denotes a light emitting element, 712 denotes a light receiving element, 713 denotes a light branching / combining element (for example, a beam splitter, a half mirror, a polarizing beam splitter, etc.), and 73 supports these elements. Electronic circuit / optical element substrate. The light output from the light emitting element 711 changes the optical path by the beam splitter 713 and is guided to the light input / output terminal 72. On the other hand, of the optical signal input from the two-dimensional optical waveguide 1 to the optical input / output terminal 72, the component that passes through the beam splitter 713 and travels straight is the light receiving element 7
12 and converted into an electric signal. Electronic circuit 70
Controls the operations of the light emitting element 711 and the light receiving element 712 to perform signal processing.

By forming in this way, it becomes possible to transmit and receive optical signals between the elements.

(Third Embodiment) FIG. 6 shows a third embodiment of the present invention. In FIG. 6, three or more elements are mounted on the substrate 2. From the first element 31, the light input / output terminal 31
2 to output an optical signal to the two-dimensional optical waveguide 1. 2
In the two-dimensional optical waveguide 1, light propagates and spreads (spreads in an in-plane direction without a confinement structure. In FIG. 6, a fan-shaped form in which light reflected on a slope obtained by cutting the end face of the optical fiber at an angle is spread. Are indicated by broken lines), the second element 32 and the third
The optical signal reaches the optical input / output terminals 322 and 332 of the element 33 of FIG. Thus, the second and third elements 32, 33
Can receive optical signals.

Since the optical input / output terminal 312 of the element 31 shown in this embodiment has a configuration in which the fiber is obliquely cut as shown in the first embodiment, the optical input / output terminal 312 extends from the optical input / output terminal 312 to one side. The light spreads and propagates, forming a fan-shaped spread as shown in FIG. A light input / output terminal 322 on the light receiving side,
The light beam 332 may be directed to the light receiving element of the own element 32 or 33 by reflecting the light with the end face of the optical fiber cut obliquely in the direction in which the light comes.

(Fourth Embodiment) FIG. 7 shows a fourth embodiment of the present invention. In FIG. 7, four elements 31 to 34 are
Implemented above. In order to transmit and receive data between the four elements, the first element 31 and the second element 33 are used here.
And the third element 32 using the optical signal 400 having the wavelength λ1.
Data is transmitted and received between the third element 34 and the fourth element 34 using the optical signal 401 having the wavelength λ2. In this example, the first element 31 and the second element 32 are further connected by the electric wiring 4,
Data transfer is performed using electrical signals.

As described above, in order to use the wavelength information for data transmission / reception, a wavelength selecting means is introduced inside the element.
The simplest example of the wavelength selecting means is a bandpass filter. For example, by using a filter composed of a dielectric multilayer film before a photodetector, it is possible to receive only an optical signal of a specific wavelength.

FIG. 8 shows the structure of the light portion inside the device.
This figure is similar to FIG. 5 (b). Light receiving element 812
By inserting an optical filter 820 between the light receiving element 81 and the beam splitter 813, only the optical signal of a specific wavelength is received.
2 can be received. 80 is an electronic circuit, 82
Is an optical input / output terminal, and 83 is an electronic circuit / optical element substrate for supporting these elements.

In this embodiment, the transmitting elements of the two elements 31 and 32 output light of different wavelengths, and the two elements 33 and
The transmission wavelength of the optical filter 820 in each of the elements 33 and 34 is set so that the 34 receiving elements can receive optical signals having different wavelengths.

If the wavelength selecting means is a so-called tunable filter whose transmission wavelength can be changed by external control (voltage control, etc.), an optical signal of an arbitrary wavelength can be transmitted, and the entire circuit can be transmitted. (For example, the combination of elements to be transmitted and received can be changed).

The wavelength of the light source on the element 31, 32 side is:
In brief, this embodiment can be configured by using a light source capable of transmitting light of a predetermined wavelength by each element. Also here, by using a so-called variable wavelength light source capable of changing the wavelength of the output light by external control, the wavelength of the optical signal used in each of the elements 31 and 32 is somewhat free. The degree of freedom of the entire circuit can be improved.
As described above, by giving the degree of freedom to the wavelength of the light source and the transmission wavelength of the filter of the receiving device, the degree of freedom in circuit design is further improved as compared with the case where any one of the degrees of freedom is provided.

(Fifth Embodiment) FIG. 9 shows a fifth embodiment of the present invention. In the figure, reference numeral 100 denotes an optical terminal that emits light from the element 32 to the space (the light terminal may be directly output from the light emitting element, or the light from the light emitting element may be an optical fiber or the like described above). It may be guided by an optical terminal and output from its end face), 101 is a light receiving element on the element 33 side that receives light propagating in the air (similarly, light is received by the light receiving surface of the light receiving element as it is). Or the light may be received at the end face of the optical terminal such as an optical fiber described above, guided therethrough, and received by the light receiving element).

In this embodiment, communication is performed between the adjacent elements 32 and 33 by an optical signal of spatial propagation, and the elements 31,
Data transmission / reception is performed between 32 using an optical signal using the two-dimensional optical waveguide 1. In this way, the exchange of the optical signal can be performed not only in the two-dimensional optical waveguide 1 but also in the space, and the light in the two-dimensional optical waveguide 1 can be effectively used. Here, 100 is the transmitting side, 101
Is set as the receiving side, but spatial transmission terminals having light emitting and receiving elements may be formed so as to communicate with each other in two directions.

(Sixth Embodiment) The first to fifth embodiments are as follows.
The optical input / output terminal made of, for example, an optical fiber is inserted into the two-dimensional optical waveguide 1. In this embodiment, another configuration is shown. FIG. 10 shows the configuration. FIG. 10 shows a portion where the two-dimensional optical waveguide 1 and the optical input / output terminal 312 are optically coupled. Here, the optical fiber 3
Twelve flat end faces penetrate the electronic circuit / optical element substrate 53 and the substrate 2 and are pressed against the plane of the two-dimensional optical waveguide 1. In this manner, light is scattered at the interface between the optical fiber 312 and the two-dimensional optical waveguide 1 and spreads in a direction extending over 360 degrees from the point where the optical fiber 312 and the two-dimensional optical waveguide 1 are in contact with each other. Light propagates in the optical waveguide 1. This state is shown in FIG.

In FIG. 11, one element 31 is composed of the substrates 2 and 2
It is shown that the optical signal propagates in the two-dimensional optical waveguide 1 isotropically, mounted on a stacked one of the two-dimensional optical waveguides 1. Since the optical signal propagates in this manner, if an optical input / output terminal (not shown) of another element is installed at the same distance from the optical input / output terminal 312 of the element 31,
At the same time, the same signal can be received.

In order to input an optical signal into the two-dimensional optical waveguide 1 or to input an optical signal in the two-dimensional optical waveguide 1 to the optical input / output terminal by making such contact, a method using a prism, etc. There is also. When the prism is attached to the distal end of the optical input / output terminal, it is sufficient that the end face of the prism and the two-dimensional optical waveguide are in contact with each other.

The two-dimensional optical waveguide used here does not have to have the three-layer structure shown in the first embodiment, and may have a structure formed only by the core (in this case, air is not applied to the cladding layer). By pressing the optical input / output terminal 312, scattering and the like in the two-dimensional optical waveguide 1 become strong, and light propagates in the waveguide 1. In addition, if the end face of the optical fiber is formed as the above-described slope and the slope is pressed against the plane of the two-dimensional optical waveguide 1, the light propagation direction can be limited to a limited angle range, and the light reception angle range is limited. Can be provided.

If the two-dimensional optical waveguide 1 has a scattering structure (for example, a part of the surface is made uneven or rough, or a scatterer is put in the waveguide 1), The optical input / output terminal may be positioned so as to be close to or in contact with the surface of the two-dimensional optical waveguide.

(Seventh Embodiment) FIG. 12 shows the configuration of the seventh embodiment. In this embodiment, the two-dimensional optical waveguide and the substrate (the substrate 2 described above) are integrated. A wiring pattern 4 is formed on the two-dimensional optical waveguide 1, power is supplied and electric signals are transmitted and received by the wiring pattern 4, and furthermore,
Optical input / output terminals 312, 3 provided in each of the elements 31, 32
The optical signal can be exchanged using the two-dimensional optical waveguide 1 as a transmission path by using the optical waveguide 22. With such a configuration, the number of constituent members can be reduced as compared with the two-layer structure of the substrate and the two-dimensional optical waveguide shown in the first to sixth embodiments. FIG. 12 shows an example applied to the configuration of the first embodiment.
This configuration can be similarly applied to the configurations up to the embodiment.

[0052]

As described above, by using a two-dimensional optical waveguide and an element corresponding to the two-dimensional optical waveguide, the degree of freedom of device arrangement is improved and a high-performance optical or optoelectronic circuit can be constructed.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a configuration of a first embodiment of the present invention.

FIG. 2 is a view for explaining the configuration of the light emitting device shown in FIG. 1 from various angles.

FIG. 3 is a view for explaining the configuration of the light receiving element shown in FIG. 1 from various angles.

FIG. 4 is a perspective view showing a configuration of a second exemplary embodiment of the present invention.

FIG. 5 is a diagram for explaining a configuration of an optical element portion of the element according to the second embodiment.

FIG. 5 is a perspective view showing a configuration of a third embodiment of the present invention.

FIG. 6 is a perspective view showing a configuration of a fourth embodiment of the present invention.

FIG. 8 is a perspective view for explaining a configuration of an optical element portion of the element of the fourth embodiment.

FIG. 9 is a perspective view showing a configuration of a fifth embodiment of the present invention.

FIG. 10 is a cross-sectional view for explaining optical connection between an optical input / output terminal and a two-dimensional optical waveguide according to a sixth embodiment of the present invention.

FIG. 11 is a perspective view showing how light spreads in the configuration of FIG. 10;

FIG. 12 is a perspective view showing a configuration of a seventh embodiment of the present invention.

FIG. 13 is a diagram for explaining a conventional technique.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Two-dimensional optical waveguide (optical mat) 2 Element substrate 4 Electric wiring (wiring pattern) 11 Two-dimensional optical waveguide core 12 Two-dimensional optical waveguide clad 31-34 Element 50, 60, 70, 80 Electronic circuit (IC, LS
I) 51, 61 Optical element 52, 62, 72, 82 Optical fiber (optical terminal) 52a, 52b, 62a, 62b Slope of optical terminal 53, 63, 73, 83 Electronic circuit / optical element substrate 100, 101 Spatial transmission Terminals 311, 321, 331 Electrical terminals 312, 322, 332, 342 Optical input / output terminals 400, 401 Optical signals 711, 811 Light emitting elements 712, 812 Light receiving elements 713, 813 Beam splitter 820 Optical filter

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2H037 BA01 BA11 BA21 CA07 CA10 CA32 DA03 2H047 KA02 KB09 MA03 MA05 MA07 TA47

Claims (24)

[Claims] An end of an optical input / output terminal element is brought close to, in contact with, or inserted into a two-dimensional optical waveguide that has spread two-dimensionally.
Light from the optical output part of the optical element optically coupled to the other end of the optical input / output terminal element or light input to the optical input part of the optical element is guided by the two-dimensional optical waveguide. An optical waveguide device comprising: 2. An optical element for outputting light, an electronic circuit, and an element including the optical input / output terminal element, and an optical element for inputting light, an electronic circuit, and the optical input / output terminal element on the two-dimensional optical waveguide. 2. The optical waveguide device according to claim 1, further comprising: an element including: an optical element for transmitting and receiving an optical signal between the optical elements via a two-dimensional optical waveguide. 3. The optoelectronic device according to claim 2, wherein each of said plurality of elements has an electric terminal connected by electric wiring, and transmits and receives an electric signal between said elements. Optical waveguide device. 4. The device according to claim 1, wherein each of the plurality of elements further includes another optical element for outputting light and another optical element for inputting light, and the other optical elements are connected by light propagating in the air. Claim 2 or 3
An optical waveguide device as described in the above. 5. The two-dimensional optical waveguide is provided such that there are two or more sets of optical elements for transmitting and receiving light, an electronic circuit, and an element including the light input / output terminal element. 5. The optical waveguide device according to claim 2, wherein the optical waveguide device is configured to be capable of transmitting and receiving optical signals having different wavelengths via a wave path. 6. The two-dimensional optical waveguide according to claim 2, wherein each of the plurality of elements is provided on the two-dimensional optical waveguide by providing each element on an electronic circuit / optical element substrate. Optical waveguide device. 7. The optical waveguide device according to claim 2, wherein said plurality of elements are provided on a substrate provided on a two-dimensional optical waveguide. 8. The optical waveguide device according to claim 7, wherein said substrate and said two-dimensional optical waveguide are stacked. 9. The optical waveguide device according to claim 7, wherein said substrate and said two-dimensional optical waveguide are laminated. 10. The optical waveguide device according to claim 2, wherein the plurality of elements are installed directly on the two-dimensional optical waveguide or via the electronic circuit / optical element substrate. 11. The optical waveguide device according to claim 10, wherein electric wiring is formed on a surface of said two-dimensional optical waveguide. 12. The optical waveguide device according to claim 1, wherein one end of the optical waveguide device has a needle shape, and the one end has an optical input / output terminal element penetrating the two-dimensional optical waveguide. 13. The optical waveguide device according to claim 12, wherein said optical input / output terminal element is formed of an optical fiber whose end is sharpened. 14. An optical input / output terminal element formed of an optical waveguide exists, and by pressing an end face of the optical waveguide against the two-dimensional optical waveguide, scattering of the two-dimensional optical waveguide portion corresponding to the optical waveguide crimping portion causes Optical signal traveling in optical waveguide and 2
The light propagating in the two-dimensional optical waveguide is coupled.
12. The optical waveguide device according to any one of claims 11 to 11. 15. The pressing force of the end face of the optical waveguide against the two-dimensional optical waveguide is adjusted so that the end face of the optical waveguide which comes into contact with the optical waveguide crimping portion is adjusted.
The optical waveguide device according to claim 14, wherein the degree of scattering of the two-dimensional waveguide portion is appropriately set. 16. An uneven surface or a rough surface is formed on the surface of the two-dimensional optical waveguide, and the end surface of the optical input / output terminal element is brought close to or in contact with the surface to scatter the uneven surface or the rough surface. 12. The optical waveguide device according to claim 1, wherein an optical signal traveling through the optical input / output terminal element and light propagating in the two-dimensional optical waveguide are coupled. 17. A scatterer is mixed in the two-dimensional optical waveguide, and an end face of the optical input / output terminal element is brought close to or brought into contact with the mixed portion, so that light traveling through the optical input / output terminal element is mixed. The optical waveguide device according to claim 1, wherein the signal and light propagating in the two-dimensional optical waveguide are coupled. 18. An optical waveguide device according to claim 1, wherein there is an optical input / output terminal element composed of a prism, and one end surface of the prism is in contact with the surface of the two-dimensional optical waveguide. . 19. The light guide according to claim 1, wherein an optical input / output terminal element is formed so as to be capable of emitting light in all directions over 360 degrees in the two-dimensional optical waveguide. Wave device. 20. The optical waveguide device according to claim 1, further comprising an optical input / output terminal element formed so as to receive light propagating from an arbitrary direction of the two-dimensional optical waveguide. . 21. The optical waveguide device according to claim 1, further comprising an optical input / output terminal element formed so as to emit light to a predetermined angle range in the two-dimensional optical waveguide. 22. The optical waveguide according to claim 1, further comprising an optical input / output terminal element formed to receive light propagating from a predetermined angle range in the two-dimensional optical waveguide. apparatus. 23. The optical waveguide device according to claim 1, wherein said two-dimensional optical waveguide comprises a core sandwiched between claddings. 24. Light that is optically coupled to the other end of the optical input / output terminal element by bringing one end of the optical input / output terminal element close to, in contact with, or inserted into the two-dimensional optical waveguide that has spread two-dimensionally. An optical waveguide method comprising: guiding light from an optical output part of an element or light input to an optical input part of an optical element through a two-dimensional optical waveguide.